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Since the 2001 terror attacks, surveillance cameras on buildings, light fixtures and utility poles have popped up like mushrooms after a summer rain.
Now that spring is here, motorists are finding themselves increasingly sharing the area's roadways with bicyclists and there is a right way for bikes and cars to coexist while commuting.
The animal rights group PETA hopes to use camera-equipped drones to catch illegal hunting and baiting practices in the U.S.
Fish oil has long been used for its supposed medicinal properties - but whether it actually works has been debated.
Area prosecutors are being extra vigilant after the deaths of four public safety officials, including the killing of two Texas prosecutors.
Before Stephen Strasburg threw a strike to open the Washington Nationals' season, an American hero -- Clint Romesha -- tossed the ceremonial first pitch.
The National Zoo commemorated the African-American community on Monday for a tradition that dates back to 1891.
Arriving late to a Nationals ball game because of heavy traffic can spoil the fun. Fortunately, there are several bus services available that can take baseball fans directly there.
From the pages of science fiction to laboratories around the world, scientists are making human body parts.
Sixty nine percent of Americans between the ages of 18 and 64 say they talked on the phone while driving in the past 30 days. That's compared to just 21 percent in Britain.